:root{--bg: #f4f6fa;--surface: #ffffff;--ink: #1c2333;--ink-soft: #5b6472;--border: #e2e7f0;--primary: #17337f;--primary-hover: #122a6a;--primary-soft: #eaeffb;--accent: #f97316;--accent-hover: #ea640a;--w-pending: #8b93a3;--w-current-bg: #fef3c7;--w-correct: #15803d;--w-error: #dc2626;--w-selfcorrect: #d97706;--radius: 10px;--shadow: 0 1px 3px rgba(22, 32, 60, .08), 0 4px 14px rgba(22, 32, 60, .06);--reading-font-size: 28px;--reading-line-height: 1.9;--font-ui: "Inter", "Segoe UI", system-ui, sans-serif;--font-reading: "Nunito", "Segoe UI", system-ui, sans-serif}*{box-sizing:border-box}html,body,#root{margin:0;min-height:100vh}body{background:var(--bg);color:var(--ink);font-family:var(--font-ui);-webkit-font-smoothing:antialiased}button{font-family:inherit;cursor:pointer;border:none}a{color:var(--primary)}.app-header{background:var(--surface);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:40}.app-header-inner{max-width:1040px;margin:0 auto;padding:0 24px;height:60px;display:flex;align-items:center;justify-content:space-between;gap:16px}.logo{display:flex;align-items:center;gap:9px;font-weight:800;font-size:17px;color:var(--primary);text-decoration:none;letter-spacing:-.01em}.logo-mark{width:28px;height:28px;border-radius:7px;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;font-size:15px;font-weight:800}.app-nav{display:flex;align-items:center;gap:6px}.nav-link{background:none;color:var(--ink-soft);font-weight:600;font-size:14px;padding:8px 12px;border-radius:8px;text-decoration:none}.nav-link:hover{background:var(--primary-soft);color:var(--primary)}.grade-badge{background:var(--primary-soft);color:var(--primary);font-weight:700;font-size:13.5px;padding:6px 12px;border-radius:999px;border:1px solid #d5defa}.page{max-width:1040px;margin:0 auto;padding:32px 24px 64px}.page-title{font-size:26px;font-weight:800;letter-spacing:-.02em;margin:0 0 6px}.page-subtitle{color:var(--ink-soft);font-size:15px;margin:0 0 26px;font-weight:500}.btn{border-radius:8px;padding:10px 18px;font-size:14.5px;font-weight:600;background:var(--primary-soft);color:var(--primary);transition:background .12s ease}.btn:hover{background:#dde5f8}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover{background:var(--primary-hover)}.btn-accent{background:var(--accent);color:#fff}.btn-accent:hover{background:var(--accent-hover)}.btn-big{font-size:16px;padding:14px 32px;border-radius:10px}.btn-ghost{background:transparent;color:var(--ink-soft)}.btn-ghost:hover{background:var(--primary-soft);color:var(--primary)}.hero{text-align:center;padding:44px 0 12px}.hero h1{font-size:34px;font-weight:800;letter-spacing:-.025em;margin:0 0 14px;color:var(--ink)}.hero p{max-width:620px;margin:0 auto;color:var(--ink-soft);font-size:16px;line-height:1.65;font-weight:500}.grade-section{margin-top:36px}.grade-section h2{font-size:15px;font-weight:700;color:var(--ink-soft);text-transform:uppercase;letter-spacing:.06em;margin:0 0 12px}.grade-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:12px}.grade-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:22px 16px;text-align:center;transition:border-color .12s ease,box-shadow .12s ease,transform .12s ease}.grade-card:hover{border-color:var(--primary);box-shadow:var(--shadow);transform:translateY(-2px)}.grade-card .num{font-size:30px;font-weight:800;color:var(--primary);line-height:1}.grade-card .lbl{margin-top:6px;font-size:13.5px;font-weight:600;color:var(--ink-soft)}.features{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px;margin-top:48px}.feature-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:22px}.feature-card .step{width:30px;height:30px;border-radius:8px;background:var(--primary-soft);color:var(--primary);font-weight:800;display:flex;align-items:center;justify-content:center;margin-bottom:12px;font-size:14px}.feature-card h3{margin:0 0 6px;font-size:15.5px;font-weight:700}.feature-card p{margin:0;color:var(--ink-soft);font-size:14px;line-height:1.6;font-weight:500}.login-split{display:grid;grid-template-columns:1.1fr 1fr;gap:28px;align-items:stretch;margin-top:24px}@media (max-width: 800px){.login-split{grid-template-columns:1fr}}.welcome-panel{background:linear-gradient(135deg,#eef2fd,#fdf3e7);border:1px solid var(--border);border-radius:18px;padding:40px 38px;display:flex;flex-direction:column;justify-content:center}.welcome-panel h1{font-size:30px;font-weight:800;letter-spacing:-.02em;margin:0 0 14px;line-height:1.25}.welcome-panel p{color:var(--ink-soft);font-size:16px;line-height:1.7;font-weight:500;margin:0 0 26px}.steps{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:12px}.steps li{display:flex;align-items:center;gap:12px;font-weight:700;font-size:15.5px}.step-num{width:32px;height:32px;border-radius:10px;background:var(--primary);color:#fff;font-weight:800;font-size:15px;display:flex;align-items:center;justify-content:center;flex-shrink:0}.student-card{background:var(--surface);border:1px solid var(--border);border-radius:18px;box-shadow:var(--shadow);padding:40px 38px;display:flex;flex-direction:column;gap:18px;justify-content:center}.student-card h2{margin:0;font-size:26px;font-weight:800;letter-spacing:-.02em}.student-card .auth-sub{margin:-10px 0 0;color:var(--ink-soft);font-size:14.5px;font-weight:500}.student-card label{display:block;font-weight:700;font-size:15px;margin-bottom:8px}.student-card input{width:100%;border:2px solid var(--border);border-radius:12px;padding:14px 16px;font-size:18px;font-family:inherit;background:#fff;color:var(--ink)}.student-card input:focus{outline:none;border-color:var(--primary)}.student-card .btn-big{font-size:18px;padding:16px;border-radius:12px}.login-footer{display:flex;justify-content:center;align-items:center;gap:12px;flex-wrap:wrap;margin-top:30px;color:var(--ink-soft);font-size:14px;font-weight:600}.login-footer .dot-sep{color:var(--border)}.auth-card{background:var(--surface);border:1px solid var(--border);border-radius:14px;box-shadow:var(--shadow);padding:28px 30px;max-width:400px;margin:28px auto 0;display:flex;flex-direction:column;gap:14px}.auth-card h2{margin:0;font-size:20px;letter-spacing:-.01em}.auth-card .auth-sub{margin:-6px 0 0;color:var(--ink-soft);font-size:13.5px;font-weight:500}.auth-card label{display:block;font-weight:600;font-size:13.5px;margin-bottom:6px}.auth-card input,.form-row input,.form-row select,.form-row textarea{width:100%;border:1px solid var(--border);border-radius:8px;padding:10px 12px;font-size:15px;font-family:inherit;background:#fff;color:var(--ink)}.auth-quick{text-align:center;font-size:13.5px;font-weight:600}.admin-tabs{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:22px}.admin-form{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:18px;margin-bottom:20px;display:flex;flex-wrap:wrap;gap:12px;align-items:flex-end}.form-row{display:flex;flex-direction:column;gap:5px;min-width:150px;flex:1}.form-row.wide{flex-basis:100%}.form-row label{font-weight:600;font-size:12.5px;color:var(--ink-soft)}.form-row textarea{min-height:120px;resize:vertical}.form-hint{flex-basis:100%;font-size:12px;color:var(--ink-soft);font-weight:500;margin-top:-4px}.row-actions{display:flex;gap:8px;justify-content:flex-end}.btn-sm{padding:6px 12px;font-size:12.5px;border-radius:6px}.btn-danger{background:#fee2e2;color:#b91c1c}.btn-danger:hover{background:#fecaca}.chips{display:flex;gap:8px;flex-wrap:wrap;margin:0 0 22px}.chip{border-radius:999px;padding:8px 16px;font-weight:600;font-size:13.5px;background:var(--surface);color:var(--ink-soft);border:1px solid var(--border)}.chip:hover{border-color:var(--primary);color:var(--primary)}.chip.active{background:var(--primary);border-color:var(--primary);color:#fff}.card-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:14px}.text-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:20px;display:flex;flex-direction:column;gap:10px;transition:border-color .12s ease,box-shadow .12s ease;cursor:pointer}.text-card:hover{border-color:var(--primary);box-shadow:var(--shadow)}.text-card .band-tag{align-self:flex-start;background:var(--primary-soft);color:var(--primary);font-size:12px;font-weight:700;padding:4px 10px;border-radius:999px}.text-card h3{margin:0;font-size:16.5px;font-weight:700;letter-spacing:-.01em}.text-card .meta{color:var(--ink-soft);font-size:13px;font-weight:500}.text-card .cta{margin-top:auto;color:var(--accent);font-weight:700;font-size:13.5px}.reading-shell{display:flex;flex-direction:column}.reading-topbar{display:flex;align-items:center;justify-content:space-between;gap:12px}.reading-topbar .title{font-weight:700;font-size:17px;letter-spacing:-.01em}.reading-text{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:36px 42px;margin:18px 0;font-family:var(--font-reading);font-size:var(--reading-font-size);line-height:var(--reading-line-height);font-weight:600;max-height:62vh;overflow-y:auto}.reading-text p{margin:0 0 1em}.word{color:var(--w-pending);border-radius:6px;padding:0 3px;transition:color .15s ease,background-color .2s ease}.word.current{background:var(--w-current-bg);color:var(--ink)}.word.prov-correct{color:var(--w-correct);opacity:.6}.word.final-correct{color:var(--w-correct)}.word.prov-error{color:var(--w-error);opacity:.6}.word.final-error{color:var(--w-error)}.word.omitted,.word.prov-omitted{color:var(--w-error);text-decoration:underline dotted;text-underline-offset:4px}.word.self-corrected{color:var(--w-selfcorrect)}.mic-area{display:flex;flex-direction:column;align-items:center;gap:10px;padding-bottom:16px}.mic-btn{width:76px;height:76px;border-radius:50%;font-size:26px;background:var(--primary);color:#fff;box-shadow:var(--shadow);position:relative;display:flex;align-items:center;justify-content:center}.mic-btn:hover{background:var(--primary-hover)}.mic-btn.listening:before{content:"";position:absolute;top:-7px;right:-7px;bottom:-7px;left:-7px;border-radius:50%;border:3px solid var(--primary);opacity:.45;animation:ring 1.4s ease-out infinite}@keyframes ring{0%{transform:scale(.92);opacity:.5}to{transform:scale(1.22);opacity:0}}.mic-label{font-weight:600;font-size:13.5px;color:var(--ink-soft)}.sens-picker{display:flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--ink-soft)}.sens-picker select{border:1px solid var(--border);border-radius:8px;padding:6px 10px;font-family:inherit;font-size:13px;font-weight:600;color:var(--ink);background:var(--surface)}.progress-track{height:8px;border-radius:999px;background:#e6eaf2;overflow:hidden;margin-top:14px}.progress-fill{height:100%;border-radius:999px;background:var(--primary);transition:width .3s ease}.countdown-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#f4f6faf2;display:flex;flex-direction:column;align-items:center;justify-content:center;z-index:50}.countdown-overlay .label{font-size:18px;font-weight:700;color:var(--ink-soft)}.countdown-overlay .number{font-size:110px;font-weight:800;color:var(--primary);animation:pop .9s ease-in-out infinite}@keyframes pop{0%{transform:scale(.7);opacity:.3}40%{transform:scale(1.05);opacity:1}to{transform:scale(1)}}.modal{position:fixed;top:0;right:0;bottom:0;left:0;background:#121a3080;display:flex;align-items:center;justify-content:center;z-index:60;padding:20px}.modal-card{background:var(--surface);border-radius:14px;box-shadow:0 20px 60px #0f172a40;padding:30px 32px;max-width:480px;width:100%;text-align:center}.modal-card h2{margin:0 0 10px;font-size:19px;letter-spacing:-.01em}.modal-card p{color:var(--ink-soft);font-weight:500;font-size:14.5px;line-height:1.65;margin:0 0 8px}.modal-card .note{font-size:12px;margin-top:16px;color:var(--ink-soft)}.reason-list{text-align:left;color:var(--ink-soft);font-weight:500;font-size:13.5px;line-height:1.6;padding-left:20px;margin:8px 0 0}.reason-list li{margin-bottom:6px}.result-level{font-size:15px;font-weight:700;color:var(--w-correct);margin:4px 0 22px}.stat-tiles{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:14px;margin-bottom:28px}.stat-tile{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:20px}.stat-tile .value{font-size:28px;font-weight:800;letter-spacing:-.02em;color:var(--primary);line-height:1.15}.stat-tile .label{margin-top:4px;font-size:13px;font-weight:600;color:var(--ink-soft)}.section-title{font-size:16px;font-weight:700;margin:26px 0 12px;letter-spacing:-.01em}.section-head{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}.section-head .section-title{margin-bottom:12px}.review-panel{margin-bottom:18px}.review-panel .reading-text{margin:10px 0 0;max-height:46vh}.legend{display:flex;gap:18px;flex-wrap:wrap;font-size:13px;font-weight:600;color:var(--ink-soft)}.legend-item{display:flex;align-items:center;gap:6px}.legend .dot{width:10px;height:10px;border-radius:50%;display:inline-block}.stats-table{width:100%;border-collapse:collapse;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden}.stats-table td{padding:11px 18px;font-weight:500;font-size:14.5px;border-bottom:1px solid var(--border)}.stats-table tr:last-child td{border-bottom:none}.stats-table td:last-child{text-align:right;font-weight:700;color:var(--ink)}.practice-chips{display:flex;gap:10px;flex-wrap:wrap;margin-top:4px}.practice-chip{background:var(--surface);border:1px solid var(--border);border-radius:8px;padding:9px 14px;font-family:var(--font-reading);font-size:17px;font-weight:700;display:flex;align-items:center;gap:8px;color:var(--ink)}.practice-chip:hover{border-color:var(--primary);color:var(--primary)}.practice-hint{color:var(--ink-soft);font-size:13px;font-weight:500;margin:4px 0 10px}.result-actions{display:flex;gap:12px;margin-top:30px;flex-wrap:wrap}.summary-row{display:flex;gap:24px;flex-wrap:wrap;margin-bottom:20px;color:var(--ink-soft);font-size:14px;font-weight:600}.summary-row b{color:var(--ink)}.history-table{width:100%;border-collapse:collapse;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden}.history-table th,.history-table td{padding:12px 16px;text-align:left;border-bottom:1px solid var(--border);font-size:14px}.history-table th{background:#f8fafd;color:var(--ink-soft);font-size:12.5px;text-transform:uppercase;letter-spacing:.05em}.history-table tr:last-child td{border-bottom:none}.history-table tbody tr{cursor:pointer}.history-table tbody tr:hover td{background:#f8fafd}.banner{background:#fff7ed;border:1px solid #fdba74;border-radius:8px;padding:10px 16px;font-weight:600;font-size:13.5px;color:#9a3412;margin:12px 0;text-align:center}.center{text-align:center}:root{--accent-text: #c2410c}html{-webkit-text-size-adjust:100%;text-size-adjust:100%;-webkit-tap-highlight-color:transparent}button,a,select,[role=button]{touch-action:manipulation}::selection{background:var(--primary);color:#fff}:focus-visible{outline:2px solid var(--primary);outline-offset:2px}:focus:not(:focus-visible){outline:none}.student-card input:focus,.auth-card input:focus,.form-row input:focus,.form-row select:focus,.form-row textarea:focus,.sens-picker select:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px #17337f21}.auth-card input,.form-row input,.form-row select,.form-row textarea,.sens-picker select{font-size:16px;-webkit-appearance:none;-moz-appearance:none;appearance:none}.form-row select,.sens-picker select{background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' fill='none' stroke='%235b6472' stroke-width='2' stroke-linecap='round'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 12px center;padding-right:34px;background-color:#fff}.btn,.chip,.nav-link,.grade-card,.text-card,.practice-chip,.grade-badge,.mic-btn{transition:background-color .15s ease,color .15s ease,border-color .15s ease,box-shadow .15s ease,transform .12s ease,opacity .15s ease,filter .12s ease}.btn:disabled{opacity:.55;pointer-events:none}.btn:active:not(:disabled),.chip:active,.practice-chip:active{transform:translateY(1px)}.mic-btn:active{transform:scale(.95)}.btn-spinner{display:inline-block;width:16px;height:16px;margin-right:8px;vertical-align:-3px;border-radius:50%;border:2px solid rgba(255,255,255,.4);border-top-color:#fff;animation:spin .7s linear infinite}.spinner{width:28px;height:28px;border-radius:50%;border:3px solid var(--primary-soft);border-top-color:var(--primary);animation:spin .7s linear infinite}@keyframes spin{to{transform:rotate(1turn)}}.page-loading{display:flex;flex-direction:column;align-items:center;gap:12px;padding:72px 0;color:var(--ink-soft);font-weight:600;font-size:14px}.skeleton{border-radius:var(--radius);background:linear-gradient(90deg,#e9edf5 25%,#f3f5fa,#e9edf5 65%);background-size:200% 100%;animation:shimmer 1.2s ease-in-out infinite}@keyframes shimmer{to{background-position:-200% 0}}.banner-error{background:#fef2f2;border-color:#fca5a5;color:#b91c1c}.banner-success{background:#f0fdf4;border-color:#86efac;color:#166534}.app-header-inner{padding-left:calc(24px + env(safe-area-inset-left));padding-right:calc(24px + env(safe-area-inset-right))}.nav-link.active{background:var(--primary-soft);color:var(--primary)}@media (max-width: 640px){.app-header-inner{padding-left:calc(12px + env(safe-area-inset-left));padding-right:calc(12px + env(safe-area-inset-right));gap:8px}.app-nav{gap:2px}.nav-link{padding:8px;font-size:13px}.grade-badge{max-width:34vw;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}}@media (max-width: 480px){.logo{font-size:0;gap:0}.logo-mark{font-size:15px}}.page{padding-left:calc(24px + env(safe-area-inset-left));padding-right:calc(24px + env(safe-area-inset-right));padding-bottom:calc(64px + env(safe-area-inset-bottom))}@media (max-width: 640px){.page{padding-top:20px;padding-left:calc(16px + env(safe-area-inset-left));padding-right:calc(16px + env(safe-area-inset-right));padding-bottom:calc(48px + env(safe-area-inset-bottom))}}.table-wrap{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);overflow-x:auto;-webkit-overflow-scrolling:touch;overscroll-behavior-x:contain}.table-wrap .history-table,.table-wrap .stats-table{border:none;border-radius:0}.table-wrap .history-table{min-width:620px}.history-table td,.stats-table td:last-child,.stat-tile .value{font-variant-numeric:tabular-nums}.stat-tile .label{font-size:11.5px;font-weight:700;text-transform:uppercase;letter-spacing:.06em}.text-card .cta{color:var(--accent-text)}.empty-state{border:1.5px dashed var(--border);border-radius:var(--radius);padding:48px 24px;text-align:center}.empty-state .title{font-size:15.5px;font-weight:700;margin:0 0 4px}.empty-state .hint{color:var(--ink-soft);font-size:14px;font-weight:500;margin:0}.reading-shell{max-width:860px}.reading-text{max-height:62vh;max-height:62svh;overscroll-behavior:contain;-webkit-overflow-scrolling:touch}.reading-shell .reading-text{-webkit-user-select:none;user-select:none;-webkit-touch-callout:none}.word.prov-correct,.word.prov-error{opacity:.8}.mic-area{padding-bottom:calc(16px + env(safe-area-inset-bottom))}@media (max-width: 640px){.reading-text{padding:22px 18px;margin:14px 0}}@media (max-height: 500px) and (orientation: landscape){.reading-text{max-height:68vh;max-height:68svh;padding:16px 20px;margin:10px 0}.mic-btn{width:60px;height:60px;font-size:22px}}@media (max-width: 800px){.login-split{gap:16px}.login-split .student-card{order:-1}.welcome-panel,.student-card{padding:26px 20px}.welcome-panel h1{font-size:24px}}@media (max-width: 640px){.admin-form{flex-direction:column;align-items:stretch}.form-row{min-width:0}.admin-form>.btn{width:100%;min-height:48px}}@media (pointer: coarse){.nav-link,.chip,.btn,.practice-chip{min-height:44px;display:inline-flex;align-items:center;justify-content:center}.btn-sm{min-height:44px;padding:8px 14px}.row-actions{gap:12px}}@media (hover: none){.btn:active{filter:brightness(.94)}.text-card:active,.grade-card:active{border-color:var(--primary);transform:scale(.985)}.chip:active{border-color:var(--primary);color:var(--primary)}.chip.active:active{color:#fff}}.modal{overscroll-behavior:contain;padding-top:calc(20px + env(safe-area-inset-top));padding-bottom:calc(20px + env(safe-area-inset-bottom))}@media (prefers-reduced-motion: reduce){*,*:before,*:after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}}